21 Sc Scandium 44,956 u

Scandium

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Periyot
4
Grup
3
Blok
d-Blok
Faz (STP)
Solid

Scandium is a soft, silvery transition metal used in aerospace alloys. It is relatively rare and was predicted by Mendeleev before its discovery.

Görünüm: Silvery white

Fiziksel Özellikler

Atom Kütlesi 44.956 u
Yoğunluk 2.985 g/cm³
Erime Noktası 1540.8 °C
Kaynama Noktası 2835.8 °C
STP'de Faz Solid
Atom Yarıçapı 184.0 pm

Elektronik Özellikler

Elektronegatiflik 1.36
İyonlaşma Enerjisi 633.1 eV
Elektron Afinitesi 18.1 eV
Değer Elektronları 3

Elektron Yapısı

Yapılandırma [Ar] 3d¹ 4s²

Electron Shell Configuration

Scandium electron shell configuration Sc 2e⁻ 8e⁻ 9e⁻ 2e⁻

Position in Periodic Table

Scandium position in the periodic table Sc

Keşif

Keşfeden: Lars Fredrik Nilson
Yıl: 1879

Periyodik Tablo

Lantanitler Aktinitler

Daha fazla Geçiş Metali

Frequently Asked Questions

What is Scandium?
Scandium (Sc) is a chemical element with atomic number 21. It is a solid at standard temperature and pressure, classified as a geçiş metali.
What are the key properties of Scandium?
Scandium has an atomic mass of 44.956 u, density of 2.985 g/cm³, melting point of 1540.8°C, boiling point of 2835.8°C.
What is the electron configuration of Scandium?
The electron configuration of Scandium is [Ar] 3d1 4s2. It is in the d-block of the periodic table.
Who discovered Scandium?
Scandium was discovered by Lars Fredrik Nilson in 1879.
What is the electronegativity of Scandium?
Scandium has an electronegativity of 1.36 on the Pauling scale.